TLE4941

Differential Two-Wire Hall Effect Sensor IC TLE4941 TLE4941C Features Two-wire current interface Dynamic self-calibration principle Single chip solution No external components needed High sensitivity South and north pole pre-induction possible High resistance to piezo effects Large operating air-gaps Wide operating temperature range PSSO2-1 TLE 4941C: 1.8nF overmolded capacitor Type TLE 4941 TLE 4941C Marking 4100E 41C0E Ordering Code Q62705-K427 Q62705-K439 Package PSSO2-1 PSSO2-2 The Hall Effect sensor IC TLE4941 is designed to provide information about rotational speed to modern vehicle dynamics control systems and ABS. The output has been designed as a two wire current interface. The sensor operates without external components and combines a fast power-up time with a low cut-off frequency. Excellent accuracy and sensitivity is specified for harsh automotive requirements as a wide temperature range, high ESD and EMC robustness. State-ofthe art BiCMOS technology is used for monolithic integration of the active sensor areas and the signal conditioning circuitry. Finally, the optimised piezo compensation and the integrated dynamic offset compensation enable easy manufacturing and elimination of magnet offsets. The TLE4941C is additionally provided with an overmolded 1.8nF capacitor for improved EMI performance. TLE4941, TLE4941C Functional Description The differential hall sensor IC detects the motion of ferromagnetic and permanent magnet structu...